JP2002340290A - Gas-liquid separator having drain valve - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a very small quantity of liquid from being again caught in gas to be carried to an outlet. SOLUTION: An upper body 1, a lower body 2, an inlet/outlet member 3 and a bottom cover 4 form a casing, and a revolving blade 14 is disposed in an annular space 13 formed by the upper body 1 and an exhaust pipe 12. The upper side of the annular space 13 is connected to an inlet 5, and the inside hole of the exhaust pipe 12 is connected to an outlet 6. A revolving chamber 16 and a liquid discharge valve chest 17 are formed below the annular space 13, and a partition wall member 23 is disposed between both chambers. A liquid passing gap 26 is formed in the outer periphery of the partition wall member 23, and a valve float 19 as a drain valve is disposed in a drain valve chest 15. An operating member 20 penetrating the inlet/outlet member 3 is screwed to the inlet/outlet member 3. A partition wall member 23 partitioning the revolving chamber 16 from the drain valve chest 17 is fixed to the lower end of the operating member 20. The operating member 20 is rotated to adjust the position of the partition wall member 23 downward when the flow velocity of inflow fluid is high, and adjust the position of the partition wall member 23 upward when the flow velocity is low.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid, such as condensed water or condensed water, mixed in a gas such as steam, compressed air or various kinds of gas, and generates a swirling flow in a casing to separate the liquid by centrifugal force. The present invention relates to a gas-liquid separator provided with a drain valve for discharging separated liquid by a drain valve.

[0002]

2. Description of the Related Art In a conventional gas-liquid separator having a drain valve, a swirl vane is disposed in an annular space formed by a casing and an exhaust pipe, an upper portion of the annular space is connected to an inlet, and an inner portion of the exhaust pipe is provided. The upper part is connected to the outlet through the hole, a swirl chamber is formed below the annular space, and a drain valve chamber is formed below the swirl chamber, and a drain valve is disposed in the drain valve chamber. A partition member is disposed between valve chambers, and a gap for liquid passage is formed between the outer peripheral edge of the partition member and the inner peripheral wall of the casing. One example of this is disclosed in Japanese Utility Model Publication No. 63-24318.

[0003]

In the gas-liquid separator provided with the above-mentioned drain valve of the prior art, depending on the speed of the flowing fluid, that is, when the flow velocity is high, the gas is separated from the center of the swirl chamber. There is a problem that the minute liquid swirling through the gas collides with the upper surface of the partition member, is reengulfed by the gas that rebounds, and is carried out to the outlet.

Accordingly, it is an object of the present invention to prevent a minute liquid from being re-engaged in a gas and carried out to an outlet.

[0005]

Means for Solving the Problems The technical means of the present invention taken to solve the above technical problem is to arrange a swirl vane in an annular space formed by a casing and an exhaust pipe, It is connected to the inlet, the upper part is connected to the outlet through a hole inside the exhaust pipe, and a swirl chamber is formed below the annular space and a drain valve chamber is formed below the swirl chamber, and the drain valve chamber is drained. A valve is disposed, a partition member is disposed between the swirl chamber and the drain valve chamber, and a gap for liquid passage is formed between an outer peripheral edge of the partition member and an inner peripheral wall of the casing. An operation member is disposed so as to be displaceable up and down, a partition member is connected to the operation member, and the operation member is operated from the outside to change the position of the partition member up and down. In the gas-liquid separator.

[0006]

According to the above-mentioned technical means of the present invention, when the flow velocity is high, the position of the partition member is adjusted downward, so that the flow velocity of the gas that collides with the upper surface of the partition member and rebounds is adjusted. Therefore, it is possible to prevent the minute liquid swirling from the center of the swirling chamber from being carried out to the outlet. If the flow rate is slow,
By adjusting the position of the partition member upward, the drain valve chamber can be widened.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment showing a specific example of the above technical means will be described (see FIGS. 1 and 2). The casing is formed by welding the lower body 2 to the upper body 1, welding the entrance member 3 to the upper body 1, and fastening the bottom lid 4 to the lower body 2 by bolts.
The entrance member 3 has an entrance 5 and an exit 6 on the left and right, and an entrance flange 7 is welded to the entrance 5 and an exit flange 8 is welded to the exit 6. The bottom cover 4 has a drain port 9, and the drain port 9 communicates with a drain valve port 11 opened in a drain valve seat 10.

The upper body 1 has a cylindrical shape and a diameter of an upper inner surface is increased. A double substantially cylindrical exhaust pipe 12 is placed on an annular step between the upper inner surface and the lower inner surface of the upper main body 1, and the exhaust pipe 12 is fixed between the inlet and outlet member 3. The outer cylinder of the exhaust pipe 12 has a straight shape and is formed lower than the inner cylinder. The outer cylinder may be omitted and the upper body 1 may be used as well. The inner cylinder of the exhaust pipe 12 has a shape in which an upper portion and a lower portion are gradually expanded. A swirl vane 14 is formed integrally with the exhaust pipe 12 in an annular space 13 formed between the inner and outer cylinders of the exhaust pipe 12.

The inlet 4 is connected to the lower annular space 13 through the communication hole 15, and the inside of the inner cylinder of the exhaust pipe 12 is connected to the upper outlet 6. A swirl chamber 16 is provided between the lower inner surface of the upper body 1 and the inner surface of the bottom cover 4, and a drain valve chamber 1 is provided below the swirl chamber 16.
7 is formed, and a hollow spherical valve float 19 as a drain valve is disposed in the drain valve chamber 17. The valve float 19 rises and falls according to the liquid level, opens and closes the drain valve port 11 of the drain valve seat 10, and discharges the liquid from the drain port 9 to the outside of the system.

A plug 18 is screw-connected to the upper wall of the door member 3, and the operating member 2 penetrating the plug member 18 through the plug 18.
0 is screwed. Nut part 21 at the upper end of operation member 20
To form Operating member 20, doorway member 3, and plug 1
A packing 22 for maintaining airtightness is interposed between the packing 8 and the packing 8.
The operating member 20 has a lower end extending near the lower end of the upper main body 1 and a partition member 23 separating the swirling chamber 16 and the drain valve chamber 17 at the lower end.
Is fixed with a nut 24. The partition member 23 has a disk shape and has four protrusions 25 on the outer periphery. The liquid passage gap 2 between the outer peripheral edge of the partition member 23 between the projections 25 and the inner peripheral wall of the upper body 1
6 is formed. The partition member 23 is vertically displaced by rotating the nut portion 21 to vertically displace the operation member 20.

When the flow rate of the inflowing fluid is high, the position of the partition member 23 is adjusted downward by rotating the nut portion 21, and when the flow rate is low, the position of the partition member 23 is raised. Adjust downward. The gas containing the liquid entered from the inlet 5 is swirled by the swirling blade 14. The liquid is swung outward and separated by the action of the centrifugal force, flows down along the inner peripheral wall of the upper main body 1, and flows into the drain valve chamber 17 through the liquid passage gap 26 between the projections 25. The liquid that has flowed into the drain valve chamber 17 is automatically discharged out of the system from the drain port 9 by the floating of the valve float 19. The gas that has passed through the lower end of the exhaust pipe 12 flows out of the outlet 6 through the inside of the inner cylinder of the exhaust pipe 12. When the flow velocity is high, by adjusting the position of the partition member 23 downward, the flow velocity of the gas that collides with the upper surface of the partition member 23 and rebounds can be reduced. It is possible to prevent the small liquid that is being carried out to the outlet 6. When the flow rate is low, the drain valve chamber 17 can be widened by adjusting the position of the partition member 23 upward.

[0012]

As described above, according to the present invention, when the flow velocity is high, the position of the partition member is adjusted downward, so that the minute liquid swirling from the center of the swirling chamber can reach the outlet. It can be prevented from being carried out, and when the flow velocity is low, an excellent effect that the drain valve chamber can be widened by adjusting the position of the partition wall member upward is produced.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a gas-liquid separator provided with a drain valve according to the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Upper main body 2 Lower main body 3 Door member 4 Bottom cover 5 Inlet 6 Outlet 9 Drain port 10 Drain valve seat 11 Drain valve port 12 Exhaust pipe 13 Annular space 14 Swirling vane 16 Swirling chamber 17 Drain valve chamber 18 Plug 19 Valve float 20 Operating member 21 Nut part 23 Partition member 25 Projection 26 Liquid passage gap

Claims (1)

[Claims] 1. A swirling blade is disposed in an annular space formed by a casing and an exhaust pipe, and an upper portion of the annular space is connected to an inlet,
Through the hole inside the exhaust pipe, the upper part is connected to the outlet, a swirl chamber is formed below the annular space and a drain valve chamber is formed below the swirl chamber, and a drain valve is arranged in the drain valve chamber, A partition member is arranged between the swirl chamber and the drain valve chamber, and a gap for liquid passage is formed between the outer peripheral edge of the partition member and the inner peripheral wall of the casing. A gas-liquid separator provided with a drain valve, wherein a partition member is connected to the operation member, and the position of the partition member is vertically movable by operating the operation member from the outside.